Question

Which one of these equations is correctly written in Standard Form?

x + 2y = −10

x + y = −5

2x + 5.5y = −5

−2x + y = −10

Answer 1

ax+by=c

Answer 2

I'm thinking the third one

Answer 3

could you explain why?

Answer 4

Because there is a coefficient in front of x and y

Answer 5

I don't think they always have to have coefficients though...

Answer 6

So what do you think it is?

Answer 7

"a" has to be a positive integer

Answer 8

So it can't be the last one

Answer 9

I wasnt sure so I asked for help, they all seemed alright to me. Although i havent seen a decimal used in slope though.

Answer 10

So thats just it..? Hmm is there something missing that you might of forgot to type?

Answer 11

brb

Answer 12

It was the first. The second and fourth were wrong, and the third is wrong because it's not a whole number. Thanks for helping.